package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.util.List;

import cn.hutool.core.bean.BeanUtil;
import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.DateUtils;
import com.zzyl.nursing.domain.*;
import com.zzyl.nursing.dto.CheckInApplyDto;
import com.zzyl.nursing.dto.CheckInElderDto;
import com.zzyl.nursing.dto.ElderFamilyDto;
import com.zzyl.nursing.mapper.*;
import com.zzyl.nursing.util.CodeGenerator;
import com.zzyl.nursing.util.IDCardUtils;
import com.zzyl.nursing.vo.CheckInConfigVo;
import com.zzyl.nursing.vo.CheckInDetailVo;
import com.zzyl.nursing.vo.CheckInElderVo;
import com.zzyl.nursing.vo.ElderFamilyVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.service.ICheckInService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;

import java.util.Arrays;

/**
 * 入住Service业务层处理
 *
 * @author ruoyi
 * @date 2025-07-25
 */
@Service
public class CheckInServiceImpl extends ServiceImpl<CheckInMapper, CheckIn> implements ICheckInService {
    @Autowired
    private CheckInMapper checkInMapper;
    @Autowired
    private ElderMapper elderMapper;
    @Autowired
    private BedMapper bedMapper;
    @Autowired
    private ContractMapper contractMapper;
    @Autowired
    private CheckInConfigMapper checkInConfigMapper;

    /**
     * 查询入住
     *
     * @param id 入住主键
     * @return 入住
     */
    @Override
    public CheckIn selectCheckInById(Long id) {
        return getById(id);
    }

    /**
     * 查询入住列表
     *
     * @param checkIn 入住
     * @return 入住
     */
    @Override
    public List<CheckIn> selectCheckInList(CheckIn checkIn) {
        return checkInMapper.selectCheckInList(checkIn);
    }

    /**
     * 新增入住
     *
     * @param checkIn 入住
     * @return 结果
     */
    @Override
    public int insertCheckIn(CheckIn checkIn) {
        return save(checkIn) ? 1 : 0;
    }

    /**
     * 修改入住
     *
     * @param checkIn 入住
     * @return 结果
     */
    @Override
    public int updateCheckIn(CheckIn checkIn) {
        return updateById(checkIn) ? 1 : 0;
    }

    /**
     * 批量删除入住
     *
     * @param ids 需要删除的入住主键
     * @return 结果
     */
    @Override
    public int deleteCheckInByIds(Long[] ids) {
        return removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }


    /**
     * 删除入住信息
     *
     * @param id 入住主键
     * @return 结果
     */
    @Override
    public int deleteCheckInById(Long id) {
        return removeById(id) ? 1 : 0;
    }

    /**
     * 入住申请
     *
     * @param dto 前端传入的所有参数
     */
    @Override
    @Transactional
    public void apply(CheckInApplyDto dto) {
        try {
            // 1. 校验老人是否已入住
            LambdaQueryWrapper<Elder> elderQueryWrapper = new LambdaQueryWrapper<>();
            elderQueryWrapper.eq(Elder::getIdCardNo, dto.getCheckInElderDto().getIdCardNo());
            elderQueryWrapper.eq(Elder::getStatus, 1);
            Elder elder = elderMapper.selectOne(elderQueryWrapper);
            if (ObjectUtils.isNotEmpty(elder)) {
                throw new BaseException("该老人已入住");
            }
            // 2. 更新床位状态为已入住
            Bed bed = bedMapper.selectById(dto.getCheckInConfigDto().getBedId());
            bed.setBedStatus(1);
            bedMapper.updateById(bed);
            // 3. 新增或更新老人
            elder = insertOrUpdateElder(dto.getCheckInElderDto(), bed);
            // 4. 新增签约办理
            insertContract(elder, dto);
            // 5. 新增入住信息
            CheckIn checkIn = insertCheckIn(elder, dto);
            // 6. 新增入住配置
            insertCheckInConfig(checkIn, dto);
        } catch (BaseException e) {
            throw new RuntimeException(e);
        }

    }

    /**
     * 新增入住配置
     */
    private void insertCheckInConfig(CheckIn checkIn, CheckInApplyDto dto) {
        CheckInConfig checkInConfig = new CheckInConfig();
        BeanUtils.copyProperties(dto.getCheckInConfigDto(), checkInConfig);
        checkInConfig.setCheckInId(checkIn.getId());
        checkInConfigMapper.insert(checkInConfig);
    }

    /**
     * 新增入住信息
     */
    private CheckIn insertCheckIn(Elder elder, CheckInApplyDto dto) {
        CheckIn checkIn = new CheckIn();
        checkIn.setElderName(elder.getName());
        checkIn.setElderId(elder.getId());
        checkIn.setIdCardNo(elder.getIdCardNo());
        checkIn.setStartDate(dto.getCheckInConfigDto().getStartDate());
        checkIn.setEndDate(dto.getCheckInConfigDto().getEndDate());
        checkIn.setNursingLevelName(dto.getCheckInConfigDto().getNursingLevelName());
        checkIn.setBedNumber(elder.getBedNumber());
        checkIn.setStatus(0);

        // 保存老人家属信息
        // 老人家属信息只用于数据展示, 转换为JSON字符串, 并存入CheckIn表的remark字段中.
        // 对象转JSON
        String jsonString = JSON.toJSONString(dto.getElderFamilyDtoList());
        checkIn.setRemark(jsonString);
        // JSON转对象
        List<ElderFamilyDto> elderFamilyDtos = JSON.parseArray(jsonString, ElderFamilyDto.class);
        System.out.println(elderFamilyDtos);

        checkInMapper.insert(checkIn);
        return checkIn;
    }

    /**
     * 新增签约办理
     */
    private void insertContract(Elder elder, CheckInApplyDto dto) {
        Contract contract = new Contract();
        BeanUtils.copyProperties(dto.getCheckInContractDto(), contract);
        contract.setElderId(elder.getId());
        contract.setContractNumber("HT" + CodeGenerator.generateContractNumber());
        contract.setElderName(elder.getName());

        // 从入住配置中获取开启和结束的时间 (入住的开始和结束时间)
        LocalDateTime startDate = dto.getCheckInConfigDto().getStartDate();
        LocalDateTime endDate = dto.getCheckInConfigDto().getEndDate();

        contract.setStartDate(startDate);
        contract.setEndDate(endDate);

        // 判断合同状态
        // startDate : 2025/07/24
        // 此刻时间 : 2025/07/24
        Integer status = startDate.isBefore(LocalDateTime.now()) ? 1 : 0;
        contract.setStatus(status);

        // 保存
        contractMapper.insert(contract);

    }

    /**
     * 新增或更新老人
     *
     * @param checkInElderDto 前端传入的老人数据
     * @param bed             床位数据
     */
    private Elder insertOrUpdateElder(CheckInElderDto checkInElderDto, Bed bed) {
        Elder e = new Elder();
        BeanUtils.copyProperties(checkInElderDto, e);
        e.setBedId(bed.getId());
        e.setBedNumber(bed.getBedNumber());
        e.setStatus(1);

        // 新增/修改
        LambdaQueryWrapper<Elder> elderQueryWrapper = new LambdaQueryWrapper<>();
        elderQueryWrapper.eq(Elder::getIdCardNo, checkInElderDto.getIdCardNo());
        elderQueryWrapper.eq(Elder::getStatus, 0);
        Elder elder = elderMapper.selectOne(elderQueryWrapper);

        if (ObjectUtils.isNotEmpty(elder)) {
            e.setId(elder.getId());
            // 已存在: 修改
            elderMapper.updateById(e);
        } else {
            // 不存在: 新增
            elderMapper.insert(e);
        }

        return e;

    }

    /**
     * 获取入住详情
     *
     * @param id 入住ID
     * @return 入住详情
     */
    @Override
    public CheckInDetailVo detail(Long id) {
        CheckInDetailVo vo = new CheckInDetailVo();
        // 入住信息
        CheckIn checkIn = checkInMapper.selectCheckInById(id);
        Long elderId = checkIn.getElderId();

        // 老人的信息
        Elder elder = elderMapper.selectElderById(elderId);

        if(elder != null){
            int age = IDCardUtils.getAgeFromIDCard(elder.getIdCardNo());
            CheckInElderVo checkInElderVo = new CheckInElderVo();
            BeanUtils.copyProperties(elder, checkInElderVo);
            checkInElderVo.setAge(age);
            vo.setCheckInElderVo(checkInElderVo);
        }

        // 入住配置信息
        LambdaQueryWrapper<CheckInConfig> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(CheckInConfig::getCheckInId, checkIn.getId());
        CheckInConfig checkInConfig = checkInConfigMapper.selectOne(queryWrapper);
        CheckInConfigVo checkInConfigVo = BeanUtil.toBean(checkInConfig, CheckInConfigVo.class);
        checkInConfigVo.setBedNumber(checkIn.getBedNumber());
        checkInConfigVo.setStartDate(checkIn.getStartDate());
        checkInConfigVo.setEndDate(checkIn.getEndDate());
        vo.setCheckInConfigVo(checkInConfigVo);

        // 老人家属信息
        String familyInfo = checkIn.getRemark();
        vo.setElderFamilyVoList(JSON.parseArray(familyInfo, ElderFamilyVo.class));

        // 合同信息
        LambdaQueryWrapper<Contract> contractQueryWrapper = new LambdaQueryWrapper<>();
        contractQueryWrapper.eq(Contract::getElderId, elderId);
        Contract contract = contractMapper.selectOne(contractQueryWrapper);
        vo.setContract(contract);

        return vo;
    }
}
